This has been a minor annoyance for a while and first I thought it was in my head, but now I am not so sure.
For a few months now I am still waiting on the one that didn't get away to get my Salty title and the turtle. So I have been fishing every day.
Numerous times I have to keep recasting to land in the node. When the miss does happen it takes 5-6 more times before I will hit the node again (sometimes longer). Also my cast will occasionally time out (never jumps). Maybe 1-2 times a day.
I thought maybe the STV fishing pole was cursed (yea I know, typical fisherman thinking. :). So I switched back to my jeweled pole and that seemed OK. I have noticed the casting is different to the STV pole. Casts closer to shore (seriously).
I switched back to my STV fishing pole and same started to happen again. Very annoying. So the other day while fishing in Northrend I just put on my STV pole and remained in full armor. I found the annoying missing the node disappeared. If I did miss it casted correctly in 1-2 retries.
After some playing around it appears if my skill goes over 600 then I will experience timeouts/miscast more frequently. I have yet to timeout with <600 skill.
Skill level still applies to not fishing up junk though.